| 1 |
dgoldberg |
1.1 |
#include "STREAMICE_OPTIONS.h" |
| 2 |
|
|
|
| 3 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 4 |
|
|
|
| 5 |
|
|
CBOP |
| 6 |
|
|
|
| 7 |
|
|
SUBROUTINE STREAMICE_TRIDIAG_SOLVE( |
| 8 |
|
|
U cg_Uin, ! x-velocities |
| 9 |
|
|
U cg_Vin, ! x-velocities |
| 10 |
|
|
U cg_Bu, ! force in x dir |
| 11 |
|
|
I A_uu, ! section of matrix that multiplies u and projects on u |
| 12 |
|
|
I umask, |
| 13 |
|
|
I myThid ) |
| 14 |
|
|
C /============================================================\ |
| 15 |
|
|
C | SUBROUTINE | |
| 16 |
|
|
C | o | |
| 17 |
|
|
C |============================================================| |
| 18 |
|
|
C | | |
| 19 |
|
|
C \============================================================/ |
| 20 |
|
|
IMPLICIT NONE |
| 21 |
|
|
|
| 22 |
|
|
#include "SIZE.h" |
| 23 |
|
|
#include "EEPARAMS.h" |
| 24 |
|
|
#include "PARAMS.h" |
| 25 |
|
|
#include "STREAMICE.h" |
| 26 |
|
|
#include "STREAMICE_CG.h" |
| 27 |
|
|
|
| 28 |
|
|
_RL cg_Uin (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 29 |
|
|
_RL cg_Vin (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 30 |
|
|
_RL cg_Bu (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 31 |
|
|
_RL A_uu (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy,-1:1,-1:1) |
| 32 |
|
|
_RS umask (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 33 |
|
|
INTEGER myThid |
| 34 |
|
|
|
| 35 |
dgoldberg |
1.2 |
INTEGER iMin,iMax,i,j,k |
| 36 |
dgoldberg |
1.1 |
_RL aMat(1:Nx) |
| 37 |
|
|
_RL bMat(1:Nx) |
| 38 |
|
|
_RL cMat(1:Nx) |
| 39 |
|
|
_RL yMat(1:Nx) |
| 40 |
|
|
_RL bet(1:Nx) |
| 41 |
|
|
_RL tmpvar |
| 42 |
|
|
INTEGER errCode |
| 43 |
|
|
|
| 44 |
dgoldberg |
1.2 |
|
| 45 |
|
|
! CALL WRITE_FLD_XY_RL ("taud_tri","",cg_Bu,0,mythid) |
| 46 |
|
|
! CALL WRITE_FLD_XY_RL ("A_m1m1","",A_uu(:,:,:,:,-1,-1),0,mythid) |
| 47 |
|
|
! CALL WRITE_FLD_XY_RL ("A_m1_0","",A_uu(:,:,:,:,-1,0),0,mythid) |
| 48 |
|
|
! CALL WRITE_FLD_XY_RL ("A_m1p1","",A_uu(:,:,:,:,-1,1),0,mythid) |
| 49 |
|
|
! CALL WRITE_FLD_XY_RL ("A_0_m1","",A_uu(:,:,:,:,0,-1),0,mythid) |
| 50 |
|
|
! CALL WRITE_FLD_XY_RL ("A_0_0","",A_uu(:,:,:,:,0,0),0,mythid) |
| 51 |
|
|
! CALL WRITE_FLD_XY_RL ("A_0_p1","",A_uu(:,:,:,:,0,1),0,mythid) |
| 52 |
|
|
! CALL WRITE_FLD_XY_RL ("A_p1m1","",A_uu(:,:,:,:,1,-1),0,mythid) |
| 53 |
|
|
! CALL WRITE_FLD_XY_RL ("A_p1_0","",A_uu(:,:,:,:,1,0),0,mythid) |
| 54 |
|
|
! CALL WRITE_FLD_XY_RL ("A_p1p1","",A_uu(:,:,:,:,1,1),0,mythid) |
| 55 |
|
|
|
| 56 |
|
|
|
| 57 |
dgoldberg |
1.1 |
|
| 58 |
|
|
IF (nPx.gt.1 .or. nSx.gt.1) THEN |
| 59 |
|
|
STOP 'must be serial for tridiag solve' |
| 60 |
|
|
ENDIF |
| 61 |
|
|
|
| 62 |
|
|
errCode = 0 |
| 63 |
|
|
|
| 64 |
|
|
imax = 0 |
| 65 |
|
|
iMin = 2 |
| 66 |
|
|
do i=imin,Nx |
| 67 |
|
|
if (umask(i,1,1,1).eq.1.0) THEN |
| 68 |
|
|
|
| 69 |
|
|
aMat(i)=0.0 |
| 70 |
|
|
bmat(i)=0.0 |
| 71 |
|
|
cmat(i)=0.0 |
| 72 |
|
|
ymat(i)=0.0 |
| 73 |
|
|
do j=-1,1 |
| 74 |
dgoldberg |
1.2 |
do k=1,3 |
| 75 |
|
|
aMat(i) = amat(i)+A_uu(i,k,1,1,-1,j) |
| 76 |
|
|
bMat(i) = bmat(i)+A_uu(i,k,1,1,0,j) |
| 77 |
|
|
cMat(i) = cmat(i)+A_uu(i,k,1,1,1,j) |
| 78 |
|
|
enddo |
| 79 |
|
|
yMat(i) = ymat(i)+cg_Bu(i,j+2,1,1) |
| 80 |
dgoldberg |
1.1 |
enddo |
| 81 |
|
|
else |
| 82 |
|
|
iMax = i-1 |
| 83 |
|
|
exit |
| 84 |
|
|
endif |
| 85 |
|
|
enddo |
| 86 |
|
|
|
| 87 |
|
|
IF(imax.eq.0) THEN |
| 88 |
|
|
imax=Nx |
| 89 |
|
|
ENDIF |
| 90 |
|
|
|
| 91 |
|
|
|
| 92 |
|
|
IF ( bMat(imin).NE.0. _d 0 ) THEN |
| 93 |
|
|
bet(imin) = 1. _d 0 / bMat(imin) |
| 94 |
|
|
ELSE |
| 95 |
|
|
bet(imin) = 0. _d 0 |
| 96 |
|
|
errCode = 1 |
| 97 |
|
|
ENDIF |
| 98 |
|
|
|
| 99 |
|
|
DO i=imin+1,imax |
| 100 |
|
|
tmpvar = bmat(i) - amat(i)*cmat(i-1)*bet(i-1) |
| 101 |
|
|
IF ( tmpvar .NE. 0. _d 0 ) THEN |
| 102 |
|
|
bet(i) = 1. _d 0 / tmpvar |
| 103 |
|
|
ELSE |
| 104 |
|
|
bet(i) = 0. _d 0 |
| 105 |
|
|
errCode = 1 |
| 106 |
|
|
ENDIF |
| 107 |
|
|
ENDDO |
| 108 |
|
|
|
| 109 |
|
|
|
| 110 |
|
|
ymat(imin) = ymat(imin)*bet(imin) |
| 111 |
|
|
|
| 112 |
|
|
DO i=imin+1,imax |
| 113 |
|
|
ymat(i) = ( ymat(i) |
| 114 |
|
|
& - amat(i)*ymat(i-1) |
| 115 |
|
|
& )*bet(i) |
| 116 |
|
|
ENDDO |
| 117 |
|
|
|
| 118 |
|
|
|
| 119 |
|
|
DO i=imax-1,imin,-1 |
| 120 |
|
|
ymat(i) = ymat(i) |
| 121 |
|
|
& - cmat(i)*bet(i)*ymat(i+1) |
| 122 |
|
|
ENDDO |
| 123 |
|
|
|
| 124 |
|
|
DO j=1,sNy |
| 125 |
|
|
DO i=imin,imax |
| 126 |
|
|
cg_Uin (i,j,1,1) = ymat(i) |
| 127 |
|
|
ENDDO |
| 128 |
|
|
ENDDO |
| 129 |
|
|
|
| 130 |
|
|
DO j=1,sNy |
| 131 |
|
|
DO i=1,sNx |
| 132 |
|
|
cg_Vin (i,j,1,1) = 0. _d 0 |
| 133 |
|
|
ENDDO |
| 134 |
|
|
ENDDO |
| 135 |
|
|
|
| 136 |
|
|
print *, "ERRORCODE", errcode |
| 137 |
|
|
|
| 138 |
|
|
RETURN |
| 139 |
|
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph